package com.ruoyi.framework.security.filter;

import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.security.LoginUser;
import com.ruoyi.framework.security.service.TokenService;

/**
 * token过滤器 验证token有效性
 * 
 * @author ruoyi
 */
@Component
@Slf4j
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter
{
    @Autowired
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException
    {
        LoginUser loginUser = tokenService.getLoginUser(request);


       Enumeration parameterNames = request.getParameterNames();

       StringBuilder parameterStr = new StringBuilder();
        while(parameterNames.hasMoreElements()) {

            String name = (String)parameterNames.nextElement();

            String value = request.getParameter(name);

            parameterStr.append("[" + name + " = " + value + "],");

        }

        Enumeration headerNames = request.getHeaderNames();

        StringBuilder headerStr = new StringBuilder();
        while(headerNames.hasMoreElements()) {

            String name = (String)headerNames.nextElement();

            String value = request.getHeader(name);

            headerStr.append("[" + name + " = " + value + "],");

        }

        /*log.debug(String.format("访问地址：%s，请求参数：%s， 头部数据：%s",
                request.getRequestURI(),
                parameterStr.toString(),
                headerStr.toString()));*/
        log.debug(String.format("访问地址：%s，请求参数：%s",
                request.getRequestURI(),
                parameterStr.toString()));



        if (StringUtils.isNotNull(loginUser) && StringUtils.isNull(SecurityUtils.getAuthentication()))
        {
            tokenService.verifyToken(loginUser);
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
